Answer:
a. optimal functioning of bodily systems, which reduces risk for diabetes and cardiovascular disease
Explanation:
Metabolic fitness -
It is the method adapted to for the proper functioning of the body , which decreases the risk of any cardiovascular disease and diabetes .
It is directly linked to the use of muscles , to reduce the risk of diseases and get a healthy body from inside .
Hence , the correct statement for the Metabolic fitness is ( a ) .